What dynamic neural codes
for efficient visual processing ?

Laurent U Perrinet, INT

Acknowledgements:

  • Jim Bednar @ Continuum Analytics & University of Edinburgh
  • Rick Adams and Karl Friston @ UCL - Wellcome Trust Centre for Neuroimaging
  • Wahiba Taouali, Giacomo Benvenuti, Frédéric Chavane - ANR BalaV1
  • Mina Aliakbari Khoei, Guillaume Masson and Anna Montagnini - FACETS-ITN Marie Curie Training

Colloque : "CODAGES ET REPRESENTATIONS", MASTER DE NEUROSCIENCES 2ème année - http://invibe.net/LaurentPerrinet/Presentations/2017-11-15_ColloqueMaster - November 15th, 2017

Outline

  1. Learning sparse codes: competition vs cooperation

  2. Sparse codes for real-life images
  3. Categorizing using sparse edges
  4. Dynamics: Sensing with delays
  5. A model compensating for delays
  6. Results: the Flash-lag effect
LP (2010) Neural Computation, http://invibe.net/LaurentPerrinet/Publications/Perrinet10shl / github

LP (2015) "Sparse models" in Biologically Inspired Computer Vision / github

LP (2015) "Sparse models" in Biologically Inspired Computer Vision / github

Outline

  1. Learning sparse codes: competition vs cooperation
  2. Sparse codes for real-life images

  3. Categorizing using sparse edges
  4. Dynamics: Sensing with delays
  5. A model compensating for delays
  6. Results: the Flash-lag effect

LP (2015) "Sparse models" in Biologically Inspired Computer Vision / github

LP (2015) "Sparse models" in Biologically Inspired Computer Vision / github
LP (2015) "Sparse models" in Biologically Inspired Computer Vision / github

LP (2015) "Sparse models" in Biologically Inspired Computer Vision / github

LP (2015) "Sparse models" in Biologically Inspired Computer Vision

Outline

  1. Learning sparse codes: competition vs cooperation
  2. Sparse codes for real-life images
  3. Categorizing using sparse edges

  4. Dynamics: Sensing with delays
  5. A model compensating for delays
  6. Results: the Flash-lag effect

Bosking et al. (1997) Journal of Neuroscience

LP and Bednar (2015) Scientific Reports, http://www.nature.com/articles/srep11400

LP and Bednar (2015) Scientific Reports, http://www.nature.com/articles/srep11400

LP and Bednar (2015) Scientific Reports, http://www.nature.com/articles/srep11400

LP and Bednar (2015) Scientific Reports, http://www.nature.com/articles/srep11400

Outline

  1. Learning sparse codes: competition vs cooperation
  2. Sparse codes for real-life images
  3. Categorizing using sparse edges
  4. Dynamics: Sensing with delays

  5. A model compensating for delays
  6. Results: the Flash-lag effect

The Behavioral receptive field

LP and Masson (2012) Bio Behav Reviews, http://invibe.net/LaurentPerrinet/Publications/Masson12
Montagnini, LP and Masson (2015) in Biologically Inspired Computer Vision

Khoei, Masson and LP (2017) PLoS CB http://invibe.net/LaurentPerrinet/Publications/KhoeiMassonPerrinet17

A model compensating for delays

Khoei, Masson and LP (2017) PLoS CB http://invibe.net/LaurentPerrinet/Publications/KhoeiMassonPerrinet17

A model compensating for delays

Khoei, Masson and LP (2017) PLoS CB http://invibe.net/LaurentPerrinet/Publications/KhoeiMassonPerrinet17

Results using PBP

Results using MBP

A model compensating for delays

Khoei, Masson and LP (2017) PLoS CB http://invibe.net/LaurentPerrinet/Publications/KhoeiMassonPerrinet17

A model compensating for delays

Khoei, Masson and LP (2017) PLoS CB http://invibe.net/LaurentPerrinet/Publications/KhoeiMassonPerrinet17

A model compensating for delays

Khoei, Masson and LP (2017) PLoS CB http://invibe.net/LaurentPerrinet/Publications/KhoeiMassonPerrinet17

What dynamic neural codes
for efficient visual processing ?

Laurent U Perrinet, INT

Acknowledgements:

  • Jim Bednar @ Continuum Analytics & University of Edinburgh
  • Rick Adams and Karl Friston @ UCL - Wellcome Trust Centre for Neuroimaging
  • Wahiba Taouali, Giacomo Benvenuti, Frédéric Chavane - ANR BalaV1
  • Mina Aliakbari Khoei, Guillaume Masson and Anna Montagnini - FACETS-ITN Marie Curie Training

Colloque : "CODAGES ET REPRESENTATIONS", MASTER DE NEUROSCIENCES 2ème année - http://invibe.net/LaurentPerrinet/Presentations/2017-11-15_ColloqueMaster - November 15th, 2017